Marine propeller having a transverse motion



Jan. 17, 1933. G. PADls MARINE PROPELLER HAVING A TRANSVERSE MOTION AFiled Dec. 24, 1951 35* the cy Patented Jan. 17,'-1933 l Y. ffAppneation iiiedfncember 24,-1931. jseriai No. ls sas,o9a.-

` y This linventi`o-n f appertains to marine pro-y pulsion and more-particularly to a novelV de-l vice lfor propelling boats, Whereinthe motivel means employed substantially at the' point sofiapplication of use.` i `Oneffofthe primary objects of my inven` tion "is4 the provision of .novel means for propelling boats, .embodying a propeller of a novel vshape which operates with :transverse 10 -movement across the longitudinal axis of the boat'in lieu of' the usual screwpro'peller now generallyfemployed ,in marinev propulsion, lthe novel propeller acting to steadythe vesfl seland to o"revent sidewise swaying of they v vessel nojw apparent in vesselsfu'sing screw propellers. ,i

A" further `object of my yinvention is thev provision' of 'novel means for operating' theV 1 propeller, whereby thesamecan be actuated on the lever principle'and whereby the `mo-V tivefluid -utilized for operating the propeller vcan be employed substantially `at the point of operation of the propeller', therehyavoidtionloflthearrowsfillustratin `the construc-l y ing all loss of power `andthe like.

A further' salient object of my invention isthe provisionof a novel means for propel# ling aboat, embodyinga spoonshaped propeller, with means for swinging thev propeller transversely ofthe'boat, said means embodying va 'novel'piston blade arranged onthe opl posite side of the axis'fro'm the propellerand disposed V'withinV aVV-shaped cylinder, vwith. novel' means for controlling'theflow of the steam or other operating. fluid from Vand to 'linder on opposite sides of th'epi'ston ,Afstill:further'object [of my invention is to provide an'improved device of the above v. characterwhich willvbevdurablaand eflicientY ,40 inuse, yonethattwillwbe simple and easy to manufacture' and one which; can` be i placed u .ponthe market and incorporated witha vessel at a' low cost.A i

With these andother vobjects in view,;the

'45' invention consists in the novel constructiom arrangement and formation of parts, as will i bevv .hereinafter more specifically described, claimed and illustrated inthe `'accompanying drawing;v vin 'which' 'f 1 :Figurer-1 isz aside elevati@ of *aboga vice equipped lwith .my improvedpropelling fde-.f vice; parts'fof theboatbeing lshown broken away to `illustrate the applieationfof my ile- `-Figure Q is a rearelevation "of myimproved .55" device withparts thereofbroken awayiland in section'tof illustrate thenovellfeonstructinI 7 there@ f Figure 3 `is a side-elevation ofmyimproved boat propelling device, lookingfrom-,theopf60 i' posite side from that shown in 'Fi'gure l; `@figure/i is a top ,planyiewfof InyiIn# proved deviceillustrating i the; means ernployed] for actuatingjthe r slide vali/ein the` s3 steam chest;y m Figure y 5is aihorizcfmtal section .taken jon the line, 5 -15 Aof Figure"2, looking Yin the fdirection of the1 arrow s illustratngthe Y'novel formation of 4fthe cylinder andkk the-means 'fory Controlling: the new ofisteam to a,ndfr0m7" Vthe oppositesides of'thecylin'd'er;

tion-of the power cylinder an pistonblade; .-7511 lFigure 7 is a detailiperspective view'ofthe slide valve'for controlling.theexhaust and inletports of the-steaetm;VV Figure 8 is azfragmentary. detailed side elevation illustrating a slightly modiiied-;form i $0 pelling device Ais mounted kinithestern thereof. e i

rMy improved `'device Af comprises an 9`5 upright casing 10 arranged`transvers'ely fof the ybo at f"l??, "which vca'isingis provided with ldiverging''partition walls "-11 and 12`de`ning aclosed"Vlshap ed power cylinder f The partitionivvallsll and '12 extend` entirely 100 with which,

yacross'the upright casing to form the closed cylinder.

' The cylinder on opposite'sides of its verl ticalaxisl is provided with ports 14 and 15,

Vwhich lead to a` steam chest 16 carried by one face of the upright casing. An exhaust passage 17L is provided in 'one wall of the steam chestgandthe chest receives a hollow slide valve 18.' i

f Mounted for oscillating'movement within the cylinder 13 is a piston blade 19 and this blade is secured to or forms a part lof the power shaft 20, mounted atv the bottom of the cylinder. The power shaft 20 is horizontally disposed and extends longitudinali of the` vessel and canbe mounted in' suitable bearings 21. 'Particular attention'is 'invited to Figure 'ofthe drawing and it will be noted that the bottomof the cylinder isy provided with a .`substantiallyy circular bearing way'for` receivingl the shaftf20 which precludes thev seepingvof water into'the cylinder,it *being e 'and the :same will 'flow into 'cylinder'.A 13

throughthe` port`14 consequentlylm-oving :the

' f In order to properly actuatefthe slidevalve 18 in proper timed'relation,the'power shaft; i 20-is provided-'with aferank Yarm '23 having connected theretofa 'pitman25,1which is op# 5.5eratively-connected to one end of a double v piston blade,y 19 `tcl the leftj Exhaust steam 3.5V

' hollow slide'valve'18 andfout ofthe exhaust will thenflow throughy the pert15 vintofthe passage 17.` Upon reverse movement of the Y slide valve18,rthe samefwill covery the chanf` nel leading to the 'port ll'and open'thechanf" nel leading from the port 15, consequently, the steam will flow above and-below the slide valve and into; the vportl 15,. vfor moving the *i 'y i piston'blade19 to fth'eright'.

Theexhaust steam w'll then iow through the portllinto the hollow slide valve and out'nofthe. exhaust' passageway 1 7.

operation, is'continued as long" as steam vis vj Vpermitted to liow into the steam chest and the 'steam can be derived ,from any'vsuitable boiler or ,otherV steam generating device.

lever* 26. 'This double Ar lever is rockably mountedas rvat 27 on a suitable upright stand? ardr 28. :,The yopposite end of the lever has'y .operatively connected athereto, a link 29 which isconnectedfto the 'slidevalve 18. A suitable-stufiingboxcan be employed aroundv the'link29 to prevent leakage of the steam.

any ldesired lway is my depending propeller 30, which. .forms animportant part ofjuthe i My device *l 1 point of resistance, which eliminates valniimber of parts Vand complications now inheren-t`i11` present invention. l As shown, this propeller. I

is of a spoon shape rand 'gradually tapersti Ward its lower end and is dished to provide a substantially concave-convex body, withr the concavedportion disposed rearwardly.

In the preferredr form,I have shown the propeller arranged directly below the piston i time 19,101@ a sito beunderstooa than@ Y propellers can bearranged on op'p'os'ite'sidesV of the blade as indicated by the reference r Y character' 31 invFigure 8 of the drawing. this instance, the bottom of the cylinder Vcan Y be completelyclosed,bya removable plate 32.

Obviously, from the foregoing'description, v

the propeller will beoscillated transversely ofthe vessel, lcausing 'a continued pressure Y on the Iwater ward. Y

. seen that myinventi'on has for itspincipal advantagesv the Vsimplicity i of mechanical". lfunctions and a movement' whereby propu'l-l` sionis inducedto'a greater range, since thej spoon traverses Iin an are about o The construction of the spoon creates at wiegt@ propel the'fbeatgforf each stroke` two channels ofl propulsion* which indicates that my device replaces the costly arrangement of two scre'vv-v propellersv.

Since'a'vessel has a natural tendency ft'osWay, that is, Y from yport to Y stareboard and vice versa, this movement which traversesandff operates'in. similar way would counteract this swaying motion and add ystabilityft'o the provides'direct power `to the l,all screw Steamers, thus making the constru'c tion of this finventionpossible' ata nominal cost.`v lts feature of simplicity.commands'to its side thegreat featureof economy, first the Y economy ,in constructiomfsecond, economy in consumption ofpowemthird, inY operating f lcostas'to fuel and O-perating'fhands, and

fourth less ylulnication and economy in space.

vibration, thereby insuring longevity'jto the device landY the u ship* with which fit is. asso:-

ciated... i

The bulbous l"shape ofthe lspoon provides? at eac'hfstroke. the creationV of 'a1 suctionat its rear, ythus sucking a' water-streamfto andlthenforeingit into two A'channels propulsion.

. While Ihavespeciied steamlfor-the mo-r tive fluid, it isf-to befunderstoodthat other.;

power'can be jused.Y l

Changes in" d tai i departing from ythe spirit 0r the scope ofv the invention, but what lclaimasnew is:

ls may bemade fl.: propelling y'device for boats comprisf ing a V-shaped cylinder, ay roel: shaft'ex- Formed? on or secured toj the shaft 20 in* the shaft :receivedwin the cylinder, ,means 'for I 13ov v controlling inlet and outlet of fluid` from the cylinder on opposite sides of the bladeincluding a slide valve, a crank on the shaft,

a double ended lever roekably mounted intermediate its ends, a pitman rod operatively connecting the crank to one end of the lever, and a link connecting the opposite end of the lever to the slide valve.

2. A. propeller for boats comprising a convcavo-convex body gradually taperingfto- Ward its opposite ends.

v In testimony whereof, I affix my signature.

GEORGE-mms. 

